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SubjectRe: [PATCH] net: fec: fix ref count leaking when pm_runtime_get_sync fails
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Date
> in fec_enet_mdio_read, …

I am curious under which circumstances you would like to improve
such commit messages.

* Will the tag “Fixes” become helpful?

* Which source code analysis tools did trigger to send
update suggestions according to 16 similar issues for today?



> +++ b/drivers/net/ethernet/freescale/fec_main.c

> @@ -1893,8 +1895,10 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
> bool is_c45 = !!(regnum & MII_ADDR_C45);
>
> ret = pm_runtime_get_sync(dev);
> - if (ret < 0)
> + if (ret < 0) {
> + pm_runtime_put_autosuspend(dev);
> return ret;
> + }
> else
> ret = 0;

I suggest to adjust also the source code from the else branch.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?id=96144c58abe7ff767e754b5b80995f7b8846d49b#n196



> @@ -2276,6 +2280,7 @@ static void fec_enet_get_regs(struct net_device *ndev,
> }
>
> pm_runtime_mark_last_busy(dev);
> +out:
> pm_runtime_put_autosuspend(dev);
> }

Perhaps use the label “put_runtime” instead?

Regards,
Markus

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